26 MEMOIRS OF THE CARNEGIE MUSEUM 
The Ischium (Plate IV., Fig. 3, and Plate V., Fig. 3).—As compared with the pubes 
the ischia were slender. Proximally they expand and form the postero-inferior one 
fourth of the acetabular border. Beneath the acetabular border they present broad, 
rugose, sutural surfaces for articulation with the pubes. Posteriorly the ischia con- 
tract rapidly and form broad flat bars with broadly rounded external surfaces. 
These bars converge and meet distally where they are codssified to form a symphysis 
about 195 millimeters in length. 
The form and principal characters of the different elements of the pelvis are well 
shown in the figures in the plates accompanying this memoir. 
The principal measurements of the different elements of the pelvis are as follows: 
mm 
Greatestrlenothiotiilimmitr iasassc-rencasten ach ae sel dasnaducetoraree nase cuclaetioc RG arene 827 
Distance from inferior extremity of pubic peduncle to top of iliac crest...... 512 
oe a HG ef ischiac  ‘* ie i CS ee 332 
Length of pubic peduncle below superior border of acetabulum............... 249 
hixpanse) ofelliagatcn tenlonex trent yn eeecec reer Eer rere eeeee eee ce eee ee eee Ee eer eee 1140 
oe Se IG MOA OS LOTION a taiei nt aes etch pisses ae hiaetercdee Sate e CREE MC EC ECE 810 
a GE oil ony OL EXONUB GOI Ii sen oak atonchd aabimandaiynenb pa ddbeaLancnacasscee bop aledacors 786 
ss HOSISCHIAC™ | pits NS cram aa anienn saavemelspa sets dea anagem a seeeace mtaamsttetatias 685 
WBE M OCHO L! PWDIS wrsiagec cece sie siranstoeneaesies sepia ricer eesme cacti ae rae seer 693 
Greatestibreadthyof pubis. eter ancsuscre atcmecneirece daca cuserenoenetaittace ee meets 432 
Least SS Be A Gs aa rgbitens isin. tac aeemee ASIAN oe Sion e Salee No Reto ioneialaniasasaaraey an ata 165 
Leneth of ischia from middle of acetabular border to distal end............... 790 
Extent of acetabular border of ischium................0.00000 ceeeeseeeeescsseeeeeeeee 210 
Breadth of ischium just above symphysis .................0:ccecccceeeeeeeeetceeeeeees 85 
Depth ‘ ue os ue PESO TOL Tebaaiae cist ee sale seperate cla automate 50 
The Femur (Fig. 14). 
Unfortunately the femur is the only element preserved of either the fore or hind 
limbs and this is not entirely complete, though sufficiently well preserved to show 
most of the more important characters. As shown in the diagram it was found not 
far removed from its normal position relative to the pelvis, so that there can be no 
reasonable doubt that it pertains to the same skeleton. It does not differ materially 
from the femur in other members of the Sauropoda although as compared with 
the other portions of the skeleton it appears rather long and stowt. ‘There is a 
low and elongated fourth trochanter on the postero-internal margin midway 
between the proximal and distal extremities, and just external to this is a shallow 
concavity with a markedly rugose surface. The external condyle is larger than the 
internal and they are well separated by a deep interecondylar notch. The head is 
large and hemispherical in form but without distinct neck. The articular surface 
